Specifications include, but are not limited to: The truck, cab, and chassis shall be capable of carrying a minimum nine (9) ton payload and shall be new or demo, with twin screw type tandem axle and shall be modified by the idder to be compatible with the Packer body and compactor unit OPERATING WEIGHT: G.V.W. minimum of 60,000 pounds Axle ratings: Front axle minimum 16,000 pounds Rear axle 40,000 pounds (twin screw tandem) Single speed with ratio compatible with engine and transmissions Equipped with manual differential lock from cab 2. SUSPENSIONS: Heavy duty front shock absorbers Heavy duty rear shock absorbers 40,000# or equivalent Spring rating 20,000 pounds flat leaf front Spring rating 40,000 pounds rear Oil lubricated front wheel and rear wheel hubs Fore./Aft/Transverse/Control Rods